Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows, macOS and Haiku. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
9,979
stars
36,884
commits
C++
primary language
Sep 13, 2026
updated
README
Stellarium
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
If you are new to Stellarium, go to www.stellarium.org for loads of additional information.
Installation Instructions & Quick Start
Please refer to the User Guide, Getting Started section.
Get & build the code
See instructions to building Stellarium from source code.
Full References and Credits
See the full credit file.
Contributing to Stellarium
See the contributing guideline.
Contributors
This project exists thanks to all the people who contribute! List of contributors on Github (code contributors) and on Open Collective page (financial contributors).
Our backers & sponsors
Thank you to all our backers and sponsors! Become a backer or sponsor.
Code Signing
Windows packages of this program uses free code signing provided by SignPath.io, and a free code signing certificate by the SignPath Foundation
SAST Tools
PVS-Studio - static analyzer for C, C++, C#, and Java code.
Contributors
(top 30 of 193)
Similar repos
Languages
C++
46.7%
C
24.2%
GLSL
15.4%
TeX
6.3%
JavaScript
2.4%
CMake
1.9%
Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows, macOS and Haiku. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
9,979
stars
36,884
commits
C++
primary language
Sep 13, 2026
updated
README
Stellarium
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
If you are new to Stellarium, go to www.stellarium.org for loads of additional information.
Installation Instructions & Quick Start
Please refer to the User Guide, Getting Started section.
Get & build the code
See instructions to building Stellarium from source code.
Full References and Credits
See the full credit file.
Contributing to Stellarium
See the contributing guideline.
Contributors
This project exists thanks to all the people who contribute! List of contributors on Github (code contributors) and on Open Collective page (financial contributors).
Our backers & sponsors
Thank you to all our backers and sponsors! Become a backer or sponsor.
Code Signing
Windows packages of this program uses free code signing provided by SignPath.io, and a free code signing certificate by the SignPath Foundation
SAST Tools
PVS-Studio - static analyzer for C, C++, C#, and Java code.
Similar repos
Contributors
(top 30 of 193)
Languages
C++
46.7%
C
24.2%
GLSL
15.4%
TeX
6.3%
JavaScript
2.4%
CMake
1.9%